From: Kailang <kail...@realtek.com>

More thorough testing showed that these verbs were necessary to
improve quality of the internal mic. Patch originally from Realtek.

Cc: sta...@kernel.org (3.11)
BugLink: https://bugs.launchpad.net/bugs/1231931
Signed-off-by: David Henningsson <david.hennings...@canonical.com>
---
 sound/pci/hda/patch_realtek.c |   13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index bc07d36..c4d54a9 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -3531,6 +3531,7 @@ enum {
        ALC269VB_FIXUP_ORDISSIMO_EVE2,
        ALC283_FIXUP_CHROME_BOOK,
        ALC282_FIXUP_ASUS_TX300,
+       ALC283_FIXUP_INT_MIC,
 };
 
 static const struct hda_fixup alc269_fixups[] = {
@@ -3790,6 +3791,16 @@ static const struct hda_fixup alc269_fixups[] = {
                .type = HDA_FIXUP_FUNC,
                .v.func = alc282_fixup_asus_tx300,
        },
+       [ALC283_FIXUP_INT_MIC] = {
+               .type = HDA_FIXUP_VERBS,
+               .v.verbs = (const struct hda_verb[]) {
+                       {0x20, AC_VERB_SET_COEF_INDEX, 0x1a},
+                       {0x20, AC_VERB_SET_PROC_COEF, 0x0011},
+                       { }
+               },
+       .chained = true,
+       .chain_id = ALC269_FIXUP_LIMIT_INT_MIC_BOOST
+       },
 };
 
 static const struct snd_pci_quirk alc269_fixup_tbl[] = {
@@ -3874,7 +3885,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
        SND_PCI_QUIRK(0x17aa, 0x2214, "Thinkpad", 
ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
        SND_PCI_QUIRK(0x17aa, 0x2215, "Thinkpad", 
ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
        SND_PCI_QUIRK(0x17aa, 0x5013, "Thinkpad", 
ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
-       SND_PCI_QUIRK(0x17aa, 0x501a, "Thinkpad", 
ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
+       SND_PCI_QUIRK(0x17aa, 0x501a, "Thinkpad", ALC283_FIXUP_INT_MIC),
        SND_PCI_QUIRK(0x17aa, 0x5026, "Thinkpad", 
ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
        SND_PCI_QUIRK(0x17aa, 0x5109, "Thinkpad", 
ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
        SND_PCI_QUIRK(0x17aa, 0x3bf8, "Quanta FL1", ALC269_FIXUP_PCM_44K),
-- 
1.7.9.5

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https://bugs.launchpad.net/bugs/1231931

Title:
  Enable internal mic on a Lenovo machine

Status in HWE Next Project:
  New
Status in “linux” package in Ubuntu:
  In Progress

Bug description:
  This bug is used for tracking purposes only, please do not triage.

To manage notifications about this bug go to:
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